Boeing on Wednesday reported a third-quarter loss of $5.4 billion as massive added costs from the delayed certification of its 777X aircraft weighed down its results.

The aviation giant scored a 30-percent jump in revenues to $23.3 billion following much higher commercial plane deliveries compared with the year-ago level.

But the performance was marred by a one-time charge of $4.9 billion on the repeatedly delayed 777X program, which has faced a prolonged certification process with US authorities.

Boeing had hoped to begin the next phase of certification flights this year. But the company has pushed those back until 2027 to complete needed preparatory analysis, company officials said.

Chief Executive Kelly Ortberg pointed to the October approval by the Federal Aviation Administration o

See Full Page